Friction on Inclines
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Objective
I can explain how friction affects an object sliding up or down a ramp.
Part 1 of 3
Warm-up video
Flipping Physics · 6:41
We don't generate video — this one is by Flipping Physics on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.
Part 2 of 3
Practice
7 questions
Explain in your own words how static friction prevents an object from sliding down a ramp.
Imagine a book is resting on a ramp. As the angle of the ramp increases, what happens to the component of gravity acting parallel to the ramp (the force of gravity parallel)? How does this affect the force of static friction?
Part 3 of 3
Exit ticket
Quick comprehension check
“A box is sliding down a ramp. In what direction does friction act on the box, and how does this affect the box's speed? You are pushing a heavy crate *up* a ramp. In what direction does friction act on the crate, and how does this affect the amount of force you need to apply? A toy car is placed on a ramp. Friction prevents it from sliding down. Explain how friction is acting on the car in this situation.”
Sample answer included in the free materials
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